Engine Displacement (Engine Capacity)

A 2.0-litre four-cylinder engine has four cylinders of about 500 cc each. Displacement alone does not determine power; turbocharging and engine design matter just as much. Bore is the cylinder diameter and stroke is the distance the piston travels. Engines with a long stroke tend to produce strong low-speed torque.

It is calculated from cylinder bore, piston stroke and number of cylinders.

Displacement often affects tax and insurance and helps identify the right parts for your engine. Downsized turbo engines produce the power of larger engines from smaller displacement, which affects how taxes based on displacement compare.